I activated the "sailfish browser proxy" button and the "Restart Sailfish browser" but sailfish browser says "Server not found". Tor is working. Torfied git to access the some onion address. How can I check what went wrong and/or how to do it manually.

The Security category no longer exists in SFOS 2.0, could you please update the package to either re-eanable the security category or use a different category (such as connectivity)?
Currently it makes a new category called "!!security"
Thanks